In the case of certifications MCSA and MCSE Windows 2012 it is interesting that the migration will not be possible for those who already is MCITP. In practice it doesn’t matter if you’re a Windows or MCITP MCTS in 2012 because the upgrade exam is the same:

Curiosity: why SharePoint and Lync, enter Exchange as eligible for the upgrade? Because for these certifications AD server expertise and is an integral part, though not the singular focus.

Only after the examination is possible continue to 417 the other Desktop and Server Infrastrucutre certifications MCSE:

Are already available (at the time I wrote this post) the content of the examinations for the MCSA 411 and 412: 2012 and the release Windows is planned for September this year. The rest of the exams will be released and update this post: